fix: update event date and enhance address visibility logic

Co-authored-by: Copilot <copilot@github.com>

data/events.json

@@ -87,7 +87,7 @@
     "title": "Japanese Delight",
     "location": "Zürich",
     "address": "Limmatquai 92, 8001 Zürich",
-    "date": "02. MAI. 2026",
+    "date": "24. April. 2026",
     "time": "12:30 UHR",
     "category": "Lunch",
     "diet": "Fisch",

js/event_detail.js

@@ -105,6 +105,19 @@
         localStorage.setItem(REGISTRATION_STORAGE_KEY, JSON.stringify(registrationMap));
     }
 
+    function getRegistrationIdsForUser(registrationMap, user) {
+        const userEmail = String(user?.email || '').trim().toLowerCase();
+        if (!userEmail) return [];
+
+        const matchingIds = Object.entries(registrationMap || {})
+            .filter(([email]) => String(email || '').trim().toLowerCase() === userEmail)
+            .flatMap(([, ids]) => (Array.isArray(ids) ? ids : []))
+            .map(id => Number(id))
+            .filter(id => Number.isFinite(id));
+
+        return Array.from(new Set(matchingIds));
+    }
+
     function parseEventDateTime(event) {
         if (!event?.date) return null;
         const dateValue = String(event.date).trim();
@@ -116,11 +129,39 @@
             month = Number(isoDateMatch[2]);
             day = Number(isoDateMatch[3]);
         } else {
-            const monthMap = { JAN:1, FEB:2, 'MÄR':3, MRZ:3, APR:4, MAI:5, JUN:6, JUL:7, AUG:8, SEP:9, OKT:10, NOV:11, DEZ:12 };
+            const monthMap = {
-            const localizedMatch = dateValue.match(/^(\d{1,2})\.\s*([A-ZÄÖÜ]{3})\.\s*(\d{4})$/);
+                jan: 1,
+                januar: 1,
+                feb: 2,
+                februar: 2,
+                'mär': 3,
+                mrz: 3,
+                mar: 3,
+                maerz: 3,
+                märz: 3,
+                apr: 4,
+                april: 4,
+                mai: 5,
+                jun: 6,
+                juni: 6,
+                jul: 7,
+                juli: 7,
+                aug: 8,
+                august: 8,
+                sep: 9,
+                sept: 9,
+                september: 9,
+                okt: 10,
+                oktober: 10,
+                nov: 11,
+                november: 11,
+                dez: 12,
+                dezember: 12
+            };
+            const localizedMatch = dateValue.match(/^(\d{1,2})\.\s*([A-Za-zÄÖÜäöü]{3,9})\.?\s*(\d{4})$/);
             if (!localizedMatch) return null;
             day = Number(localizedMatch[1]);
-            month = monthMap[localizedMatch[2]];
+            month = monthMap[String(localizedMatch[2]).toLowerCase()];
             year = Number(localizedMatch[3]);
             if (!month) return null;
         }
@@ -150,8 +191,18 @@
     function isAddressVisibleWindow(event) {
         const eventDateTime = parseEventDateTime(event);
         if (!eventDateTime || Number.isNaN(eventDateTime.getTime())) return false;
-        const msUntilStart = eventDateTime.getTime() - Date.now();
+        const now = Date.now();
-        return msUntilStart >= 0 && msUntilStart <= 24 * 60 * 60 * 1000;
+        const start = eventDateTime.getTime();
+        const revealStart = start - (24 * 60 * 60 * 1000);
+        const revealEnd = start + (1 * 60 * 60 * 1000);
+        return now >= revealStart && now <= revealEnd;
+    }
+
+    function isEventPastAddressWindow(event) {
+        const eventDateTime = parseEventDateTime(event);
+        if (!eventDateTime || Number.isNaN(eventDateTime.getTime())) return false;
+        const revealEnd = eventDateTime.getTime() + (1 * 60 * 60 * 1000);
+        return Date.now() > revealEnd;
     }
 
     function isEventOwnedByCurrentUser(event, user) {
@@ -290,11 +341,10 @@
         const isFull = freePlaces === 0;
         const isRegistrationClosed = isRegistrationClosedForEvent(event);
         const deregInfo = getDeregistrationInfo(event);
-        const userRegistrations = currentUser?.email && Array.isArray(registrationMap[currentUser.email])
+        const userRegistrations = getRegistrationIdsForUser(registrationMap, currentUser);
-            ? registrationMap[currentUser.email].map(id => Number(id)) : [];
         const isRegistered = userRegistrations.includes(Number(event.id));
         const isListedParticipant = isUserListedInEventParticipants(event, currentUser);
-        const hasAddressAccess = isRegistered || isListedParticipant;
+        const hasAddressAccess = isRegistered || isListedParticipant || isOwnEvent;
 
         const actionButtonLabel = isOwnEvent ? 'Dein Event!'
             : !currentUser ? 'Einloggen'
@@ -309,9 +359,21 @@
             : ' button-primary ';
 
         const shouldRevealAddress = Boolean(event.address) && isAddressVisibleWindow(event) && hasAddressAccess;
+        let addressMessage = 'Wenn du dich anmeldest, wird die Adresse für diesen Event wird 24 Stunden vorher genau hier sichtbar sein.';
+
+        if (isOwnEvent) {
+            addressMessage = 'Deine Adresse für diesen Event wird 24 Stunden vorher genau hier für alle Teilnehmer sichtbar sein';
+        } else if (hasAddressAccess) {
+            addressMessage = 'Vielen Dank für die Anmeldung! Die Adresse für diesen Event wird 24 Stunden vorher genau hier sichtbar sein.';
+        }
+
+        if (isEventPastAddressWindow(event)) {
+            addressMessage = 'Vielen Dank, dass du an diesem Event teilgenommen hast.';
+        }
+
         const addressPanelMarkup = shouldRevealAddress
             ? `<article class="detail-panel"><h2 class="detail-section-title">Adresse</h2><p>${event.address}</p></article>`
-            : `<article class="detail-panel"><h2 class="detail-section-title">Adresse</h2><p>Vielen Dank für die Anmeldung! Die Adresse für diesen Event wird 24 Stunden vorher genau hier sichtbar sein.</p></article>`;
+            : `<article class="detail-panel"><h2 class="detail-section-title">Adresse</h2><p>${addressMessage}</p></article>`;
 
         const detailChips = [
             `<span class="event-tag">${eventCategory}</span>`,